Gas-engine primer.



w. IjmNTLlFF.

@As ENGINE PRIMER. A APPLICATION FILED NDI/.14, ISHSl u Patented De. 3,1918.

E N E m MI Cv WITNESS' n.: gnu uns ca. Mumuma., wuummg...

UNrTED sTATEs PATENT oEEicE.

WILBERT T. BINTLIFF, OF PLAINFIELD, NEW JERSEY, ASSIG-NOR 0F ONE-HALF T0ALLEN B. LAING, OF PLAINFIELD,.N EW JERSEY.

ens-ENGINE PRIMER.

Specification of Letters Patent.

Patented Dec. 3, 1918.

Original application led June 4, 1915, Serial No. 32,050. Divided andIthis application led November 14, 1916. Serial No. 131,185.

To all whom t may concern:

Be it known that I, WILBERT T. BINTLIEF, a citizen of the United States,residing at Plainfield, in the county of Union and State of New Jersey,have invented an Improvenient in Gas-Engine Primers, of which thefollowing is a specification.

In order to obtain an eiiicient explosive mixture for use in gas enginesit is necessary to combine the gas or vaporized hydrocarbon with air inpredetermined `quantities and as it is generally known cold gas and'cold air will not mingle properly to form an eihcient explosivemixture. reason that diiculty is often experienced in starting gasengines. f

I am aware that heretofore various devices t have been provided for thepreliminary heating of either the gas or the air or both the gas and theair. This invention, however, relates to an apparatus for heating aliquid hydrocarbon fuel to a point of vaporization if necessary so thatthe same is properly heated when introduced into the mixing chamber tobe combined with the predetermined quantity of air before supplying sameto the engine cylinder and starting the engine and is so constructedthat it may be employed at all times in the continuous running of a gasengine to properly vaporize kerosene or other relatively low gradehydrocarbon when it isnot possible to employ gasolene. The primer madein accordance with this invention is heated electrically and may beattached directly. to the engine manifold or associated with thecarhureter in such a manner that the vaporized liquid at the necessarytemperature passes therefrom to the chamber wherein it is mixed in theair before entering into the cylinder.

The invention to which the present application relates and is intendedto cover is for a form of gas engine primer shown and described in myco-pending application, Serial No. 32,050, filed June 4, 1915, but whichis not claimed in said application. This form of the invention comprisesa casing, a helical coil with close convolutions within the casing, andwhich is heated directly by the passage of an electric currenttherethrough to heat or vaporize the liquid hydrocarbon in its passagethrough the coil to the manifold of the engine. It is to be understood,

It is for this,

hicle in which the primer forming the present invention is included, and

Fig, 2, is a central longitudinal cross section of the primer.

'-Ixet'erring to the drawing and particularly to Fig. '2, the gas engineprimer or liquid heater or vaporizer made in accordance with thisinvention preferably comprises a casing 10 .which may be cylindrical orof any other desired configuration and constructed of metal or othersuitable material. At one e-nd the casing is closed and provided with ascrew threaded boss 11, while at the opposite end the casing is open andfitted with an insulating cover 12 which may be secured in positiontherein by screws 13 passing through the casing and into a ange of thecover or otherwise.

Passing centrally through an aperture provided therefor' in the cover l2I employ a metallic sleeve 14. This is provided with a ange 15 adaptedto rest against the outer surface of the cover and the sleeve ismaintained' in position relatively to the cover by a nut 16 turned downon that portion of the sleeve which projects interiorly through thecover. Within the receptacle thus formed I employ a helical coil 17 madeof suitable material. to be heated electrically and the convolutions ofwhich are made to lie close toonennother.- One end 1S of the coil isconnected electrically in the sleeve 14 through which it'passescentrally while the 'opposite'end 19 of the coil passes through .rapparent the primer ma through which a supply pipe 22 passes and isconnected at its extremity to a bushing 23 adapted to fit within thebase of the cap 20. Between the base of this bushing and the adjacentend of the sleeve 14 is a washer 24C of insulating material in order toform a tight joint between these parts when the cap is turned toposition and thus prevent the escape of the liquid fuel. 25 designates alead wire provided with a terminal 26 adapted to be electricallyconnected to the coil by being secured in place between the flange '15of the sleeve 14C and the adjacent end of the cap vwhen the latter isturned to place.

By reference to Fig. l the application of the hereinbefore describedprimer will be evident. In thisl view 27 represents a supply tank whichis connected by a pipe 28 in which there is a T connection 29 to a'carbureter 30. The valve or cock of the carbureter is indicated at 31and the carbureter is connected in the usual manner to the enginemanifold 32. The engine cylinders are indicated at 33. A pipe 34Cextends from the branch of the T connection 29 to a `T valve 35controlled by a valve stem and handle 36 placed in the dash board of thevehicle or elsewhere. The pipe 37 leads from the T valve 85 to thecasing 10. The primer as it will be understood may be operated from anysuitable force of electricity and in Fig. l the lead wire is shown asconnecting the coil .to one terminal of a switch 38,'the oppositeterminal of which is connected'to one' side of a battery 40, the otherside of which is grounded-'on the frame of the machine as indicated atall.` j

In the use of this apparatus as Will be be employed. not only tovaporize the hy rocarbon in starting the engine but also may beadvantageously used in the employment of kerosene or other low gradehydrocarbons for fuel while continuously operating the motoror thesupply of the primer may :be shut off at the T valve and the usualcarbureter 30 employed in the ordinary operation of the motor after' ithas been properly started. Also as hereinbefore indicated Copies of thispatent may be obtained for while this invention is shown and describedas a primer for gas engines it ma be used advantageously in heating aliqui for any purpose,

I claim as my invention:

l. An electrical primer comprising a cylindrical casing closed at oneend and open at the other e-nd, a, cover secured to the open end of thecasing, a terminal secured in the cover, a coiled pipe with spacedconvolutions placed vertically in the casing with an appreciable spacebetween the convelu-tions of the coil and the sides of the casing, withone end of the coil connected to said terminal and the other end of thecoil connected in the casing, a supply pipe, and means for connectingthe supply pipe iu alinement with and insulated from the end of the coilwhich is secured in the said terminal.

2. An electric primer comprising a cylindrical casing closed at thelower end and Open at the upper end, an insulating cover secured to theupper open end of the casing, a sleeve terminal connected centrally inthe said cover, a coiled pipe with spaced convolu tions placedvertically in the said casing with an appreciable space'between thelower end of the coil and the bottom of the casing, and the upper end ofthe coil and the said cover, and also between the convolutions of thecoil andthe sides of the casing, the lower end of the coil beingelectrically connected in the bottom of the casing, and the upper end ofthe coi-l electrically connected in the said sleeve terminal, a capturned down on the sleeve terminal, a bushing fitting within' the saidcap,I an insulating' ring in the said cap, a pipe extending through theinsulating ring and secured in the said bushing, and a.' washer-alsowithin said cap and between the bushing and the end of the said sleeveterminal for maintaining a' tight insulated joint 'between'the adjacentends of the coil and the supply pipe when the said cap is turned toposition on the sleeve terminal.

Signed by me this 8th day of November, 1916.

XVILBERT T. BINTLIFF.

ve cent each, by addressing the Commissioner n! Patents, Washington,1).(2.

